Nuclear needs a few more issues figured out, like how to actually cheaply build and get power from all those touted newer cleaner reactor styles.
The only real problem I have with new nuclear plants is that we have to build them with the current government and regulatory environment.
The current government in the United States is so terrible at its job it cannot even agree to pay its debt bills for things it already agreed to buy in a currency that it issues itself without a never ending series of debates.
The current regulatory structure allows all kinds of environmental criminality and corners to be cut by the corporations who will ultimately build, staff, and run these power plants.
I don't trust these "public/private partnerships" to result in well-designed, adequately planned, correctly maintained nuclear plants. I expect corners will be cut all over the place, and that maintenance and upkeep that is supposed to occur regularly according to anyone with any sense during the design process will be deferred in order to generate more upfront profit. I also suspect that rampant NIMBYism will result in any new ones being placed in areas that are already largely impacted by other terrible societal aspects: inequality, racism, gerrymandering, other industry, etc.